Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Ultraviolet light of wavelength 280 nm is used in an experiment on photoelectric effect with lithium ( = 2.5 eV) cathode. Find (a) the maximum kinetic energy of the photoelectrons and (b) the stopping potential.
(a) K.E. = (hc / ) – 0 = (1242 ev-nm/ 280 nm) – 2.5 ev = 1.9 ev(b) stopping potential is given by ev = K.E.max V = 1.9 ev / e = 1.9 Volt
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -